p pearson



(No Model.) 3 Sheets-Sheet 1.

' ,A. PEARSON.

CASH INDIGATOR.

No. 400,247. Patented Mar. 26, 1889.

qwithemd gum mm W ZZvsz-z Fears an.

3543 wwmg N. PETERS. Pbolwuho nphr. WMM, D C.

3 SheetsSheet 3.

(No Model.)

'A. PEARSON.

CASH INDICATOR.

No. 400,247. Patented Mar. 26, 1889.-

,....|m uwnuumwhb Ti'm I II

UNITED STATES PATENT OFFICE.

AVEN PEARSON, OF \VASHINGTON, DISTRICT OF COLUMBIA.

CASH-INDICATOR.

SPECIFICATION forming part of Letters Patent No. 400,247, dated March26, 1889.

Application filed April 28, 1888. Serial No. 272,117. (No model.)

To all whom it may concern:

Be it known that I, AvEN PEAEsoN, a citizen of the United States ofAmerica, residing at *ashington, in the District of Columbia, haveinvented certain new and useful Improvements in Oash-Registers, of whichthe following is a specification, reference being had therein to theaccompanying drawings.

My invention relates to improvements in cash-registers; and it consistsin certain de tails of construction and combinations of parts, whichwill first be described in connection with the accompanying drawings,and then clearly pointed out in the claims.

Figure 1 of the drawings is a perspective view of the cash-registerdetached from the wooden frame-work, a portion being broken away to showthe mechanism for regulating the tension of the retracting-springs. Fig.2 is a bottom view of the same. Fig. 3 is a vertical section taken onthe line 5c 00, Fig. 2.

Referring to the drawings, A represents a quadrantal metallic casinghaving two circumferential slots, at a, and two transverse openings, a athe top part of the casing, however, being turned downward, as at a,Fig. 3. A partition-plate, A, divides the easing A into two parts.

B represents a transverse shaft removably secured in the sides of thecasing by means of screws 11 passing into its ends. The shaft itself isnot revoluble, but it is encircled by two loose sleeves, C C, which arefree to revolve thereon.

D D represent two frame-pieces, of the same general shape as thecasing,which frames are cut out, as at d, to lighten them. They arerigidly secured to the sleeves O O, and to the outer circumference ofeach one is socured a curved plate, E E, which fits neatly under andcoincides with the shape of the top of easing A. To each of these platesare secured nine o iierating-handles, F F, which extend up through theslots a 0,, the handles F being preferably numbered on top by fives from5 to 45, indicating cents, while handles F are preferably numbered byfifties from :1 (or fifty) to 4. (or four fifty,) indicating dollars. Oneach of the plates E E, just above each handle, but in a radial linecoinciding with the openings a? 0, in casing A, is a series of largefigures corresponding with the num= hers on the handles. A brace, G,secured to the sides of easing A and to an extension= piece, a, securedto partition-plate A, serves to prevent the walls of slots ct a being socrowded together as to cramp the handles.

Two spring-pins, 1, beveled upon the upper side, engage with holesformed near the inner edges of plates E E, to hold them down in theposition to which they may be drawn. These pins are mounted on a plate,2, which normally overlaps another plate, 3, on which it slides, as seenin Fig. 2, the plate 3 being screwed to brace G. A lever, at, pivoted atits upper end to the partition-plate, its lower end resting against astop in the money-drawer, (not shown,) engages with the forward edge ofplate 2, and serves to withdraw the pins in looking position (or bothpins simultaneously when they are both in that position) when themoney-drawer is pulled out to deposit the money.

H H represent retracting-springs for retu rning the curved plates E E totheir normal positions when released by the spring-pins. One end of eachspring is secured to the sleeve O or O on shaft B, and around whichsleeve it is coiled, its other end being secured to a small drum, 5,rigidly mounted on an arbor, 6, journaled in the side of the casing A.On the outer end of this arbor, outside the casing, is rigidly secured atoothed wheel, '7, with which meshes a worm-screw, 8, which has itsbearing in two studs, 9, on the side of the casing, as seen in Fig. 1.By this mechanism I am enabled to regulate the tension of the springs toa nicety, which is a matter ofconsiderable importance. The tension ofsprings H should be sufficient to retract the framepieces and curvedplates quickly; but when the springs are under that tension I have foundthat it is necessary to provide some means for graduallyarresting themomentum of the frame-pieces, so as to prevent undue concussion andnoise. To this end I employ an air-cushion, I, for each frame-piece,which cushion consists of a small cylinder, t, secured to the downturnedflange a of the top part of easing A, the open end of the cylinderregistering with a hole, a, in said flange (t the other end of thecylinder being closed.

IOC

Inside of the cylinder 1' there is another shorter cylinder, 2', havingan open and a closed end, the reverse of those of cylinder 1', thecylinder 2" fitting so neatly within the other as to permit a very slowescape of air, and inside of the inner cylinder, for the purpose ofcarrying it up flush with the upper end of the outer cylinder whenpressure is off, is a spiral spring, 2 The plunger 23, for depressingthe inner cylinder, is secured to a downwardly-extendin g flange, e, onthe curved plate.

K K represent two registering drums loosely mounted on shaft B, the drumK being marked with four sets of numbers, running, preferably, by fivesfrom 0 to 45, and provided with forty ratchet-teeth corresponding withthese figures. This drum is also provided with four radial pins, is, setat equal distances apart. Drum K is preferably numbered by halves orfifties (representing dollars) from 0 to 19%, it being also providedwith forty ratchet-teeth corresponding with these numbers and one radialpin, 7r.

L represents another registering-drum considerably smaller than theothers and located immediately in front of drum K, it being looselymounted on an arbor, Z, secured in the partition-plate. This drum ispreferably numbered by twenties from 0 to 380, and has twentyratchet-teeth corresponding with these numbers.

M represents a combined adjustable pawland-indicator device, whichserves to hold all the registering-drums against backward revolution,and also to indicate the amounts registered. This device consists of abar, m, secured to the front edge of the partition-plate, tworearwardly-extending pawls, m, slotted at one end, and each providedwith an indicating-finger, m at the other end for operation inconnection with drums K and K, and a shorter forwardly-extending pawl, mconstructed precisely like pawls m, for operation in connection withdrum L. Each of these pawls is adjustably secured to bar or by means ofa set-screw, m passing through the slots and taking into said bar, asseen in Fig. 2. By combining the indicator with the pawl I avoid thenecessity for separate indicators, and by making the pawls adjustable Iam enabled to adjust any one of them with relation to the others as itmay become worn.

Drums K and K are operated by means of pawls N, the free ends of whichare mortised to fit over a single tooth, the other end being secured toa short stud, 01, secured in the side of each frame-piece D D, as seenin Fig. 3, so that as the frame-piece and its curved plate are pulleddown to register a given amount the drum will be turned a number ofteeth corresponding with that amount. Drum L is turned by the pin 011drum K engaging with one of its teeth in an obvious manner.

0 represents a toothed wheel rigidly secured to the side of drum K. Thiswheel is about half the diameter of the drum, but has the same number ofteeth as the drum.

P represents a lever, pivoted at p to the partition-plate above drum K,and provided at its free end with a hinged pawl, p, which is held inengagement with the teeth on wheel 0 by a spring, 23 secured to thelever. The lever is provided with a laterally-extending arm, P, whichpasses through a curved slot, 8, in the partition-plate and lies in thepath of the pins is on drum K, as best seen in Fig. 2. A spiral spring,15, secured to the lever and to the partition-plate, serves to returnthe lever to its normal position, and an adjusting-screw, u, mounted ina stud, e, secured to the side of the partition-plate, bears againstlever P and serves as a means for taking up lost motion due to wear.

It will be apparent that the frame-pieces and their curved plates andhandles, and also the registering-wheels, may be duplicated in a singlecasing if desired to register additional amounts; but the mechanismabove described will be found to meet the ordinary requirements oftrade.

The operation of this register is as follows: A sale amounting to, say,ten cents having been made, the money-drawer is opened to deposit themoney, after which frame-piece D, with its curved plate E, is pulleddown by taking hold of the second handle until the number 10 on plate Eappears in opening a in casing A. This movement of the frame to whichpawl N is attached will cause that pawl to draw drum K around throughthe space of two of its teeth, the combined pawl and indicatorpreventing backward revolution of the drum and indicating on the drumthe amount of the sale. hen the plate is thus drawn down, the spring-pin1 will enter the second of the series of holes near the edge of saidplate and hold it in locked position, exposing the number 10 until thedrawer is again opened,when lever A will operate to withdraw the pin and allow spring H to throw the frame piece and plate back to their normalpositions, the momentum of these parts being gradually arrested by theair cushion I, as above described. It will be understood that as thespring-pin is beveled on its upper side it will not engage with any ofthe intervening holes in the curved plate until said plate is brought torest. Again, suppose the indicating-fingers point to 45 on drum K and to12 on drum K, as in Fig. 2, wherein it will be seen that one of the pins7r on drum K is now resting against the rear side of arm P of lever P.Now, if frame-piece D is pulled down by taking hold of the first handle,drum K will be turned one number, when the indicator will stand at 0;but as the drum is turned its pin it will raise arm P of lever P andcause pawl 19 to turn wheelO one tooth, which will carry drum K aroundone number, and its indicator will then point to 12:}.

While wheel 0 and its connected mechanism serve effectually to transfera single record of the .sale.

from drum K to drum K, they are absolutely essential, so far as anyother mechanism with which I am acquainted is concerned, to pre ventfraud or error on the part of the operator when it becomes necessary tooperate both plates E and E to indicate the amount To illustrate, wewill suppose that the indicator-fingers point to 45 and 12, as abovestated, and it is wished to register fifty-five cents. To do this plateE may be first drawn down by taking hold of the first handle, as aboveexplained, and then plate E may be drawn down in like manner, (or bothmay be operated simultaneously) when will show in opening (L3 and 5 inopening a In first drawing down plate E of course drum K will be movedone tooth, when its indicator will point to 12%, and then when plate Eis operated to move drum K one tooth the pin 7s will raise arm P andcause pawl p and wheel 0 to turn drum K another tooth, so that itsindicator will then point to 13. Should both plates be operated at thesame time the same result would followthat is to say, drum K would bemoved two teethfor the reason that by wheel 0 it is made to travel justtwice as fast as drum K, and therefore an accurate register will bemade, no matter in what order the drumsare operated. This would not bethe case, however, if the drums were made to travel at the same speedwhen registering these double numbers, for the reason that if both drumswere operated simultaneously they would then each be moved but onetooth, and therefore a registration of fifty cents on drum K would thenbe dropped.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination, with the een ts-register ing drum provided withprojecting pins and mechanism for turning it, of the dollars-drum, atoothed wheel secured to the side of said drum, and a lever providedwith a hinged pawl to turn the said wheel, the lever being operated bythe pins on the cents-drum, whereby the dollars-drum is caused to movefaster than the cents-drum, for the purpose stated.

2. The combination, with the cents-drum provided with radial pins andmechanism for turning it, of the dollars-drum, a toothed wheel securedto the side of said drum, and a lever provided with a hinged pawl toturn the said wheel, and having an arm extending laterally into the pathof the radial pins on the cents -drum, whereby the dollars drum iscaused to move faster than the cents-drum, for the purpose stated.

3. The combination, with the cents-drum provided with projecting pinsand mechanism for moving it, of the dollars-drum, a toothed wheelsecured to the side of said drum, and an adjustable lever provided witha hinged pawl to turn the said wheel, the lever being operated by thepins on the cents-drum, substantially as described, and for the purposestated.

L. The combination, with a registeringdrum, of an adjustable pawl havingan integral laterally-extending indicating finger, substantially asdescribed, and for the purposes stated.

5. The combination, with the main shaft, a loose sleeve encircling saidshaft, and a framepiece rigidly secured on said sleeve and carrying acurved plate, of a retracting-spring, and a drum to which one end ofsaid spring is attached, an arbor on which the drum is mounted, atoothed wheel on one end of the arher, and a worm-screw in engagementwith said wheel for regulating the tension of said spring, for thepurpose set forth.

6. In a cash-register of the class described, the combination, with thecasing, the shaft, a sleeve encircling said shaft, a frame-piececarrying a curved plate, and a spring for retracting said framepiece, ofan air-cushion attached to the casing and a plunger attached to thecurved plate, substantially as described, and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

AVEN PEARSON.

\Vitnesses:

WM. HUNTER MYERS, G. W. BALLOCH.

